489.8% is the change from 49 to 289
Calculation steps:
[( 289 - 49 ) ÷ 49] x 100 = 489.8%
Formula
Percentage change = [(289 - 49) / 49] x 100
Subtract the new number by the original number
289 - 49 = 240
240 ÷ 49 = 4.8979591836734695
4.8979591836734695 x 100 = 489.8%